Question

12 pumps can fill a reservoir in 15 hours how many hours will 10 pumps take a fill the same reservoir​

Answer 1

Answer:

18 is the answer

Step-by-step explanation:

time taken by 12 pumps= 15 hrs

time taken by 1 pump = 12*15 (because less machine more work)

therefore, time taken by 10 pumps = 12*15/10= 18 is the answer

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